3 Acids, Bases & Buffers Flashcards
1
Q
Dynamic Equilibrium
A
- ) most chemical reactions are reversible
- ) reactants combine to give products
- ) products can fall apart to give reactants
2
Q
Le Chatelier’s Principle
A
-when a system in a state of dynamic equilibrium is disturbed (meds), it will react to re-establish equilibrium conditions
3
Q
The Equilibrium Constant
A
- a system is in a state of equilibrium when there is a balance between reactants and products
- mathematical, numerical description of the balance
- pKa
4
Q
K
A
state of equillibrium
5
Q
As K increases…
A
reaction tends to shift towards products
6
Q
As K decreases..
A
reaction tends to shift towards starting materials
7
Q
Subscript Keq
A
generic equilibrium constant
8
Q
Subscript Ka
A
weak acids
9
Q
Subscript Kb
A
weak bases
10
Q
Subscript Ksp
A
solubility
11
Q
Bronstead: Acid
A
-a proton/hydrogen ion donor
12
Q
Bronstead: Base
A
-a proton/hydrogen ion acceptor
13
Q
Conjugate Base
A
when an acid donates a proton, it is converted into its conjugate base
14
Q
Conjugate Acid
A
when a base accepts a proton, is becomes a conjugate acid
15
Q
Amphoteric Species
A
- can behave as an acid or a base
- ex.) water
